Home / 10,407.32-15,609.48-3,387.98

Finding the Fourth Proportional to 10,407.32, 15,609.48 and 3,387.98

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Solution

The fourth proportional to 10,407.32, 15,609.48 and 3,387.98 is: 5,081.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.32 : 15,609.48 = 3,387.98 : x
  2. Step 2: Convert to fraction form
    10,407.32/15,609.48 = 3,387.98/x
  3. Step 3: Cross multiply
    10,407.32x = 15,609.48 × 3,387.98
  4. Step 4: Simplify right side
    10,407.32x = 52,884,606.05
  5. Step 5: Solve for x
    x = 52,884,606.05/10,407.32
  6. Step 6: Final answer
    x = 5,081.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.